Loading apparatus



II. D. PRATT. LOADING APPARATUS.

'Q' APPLICATION FILED IUNE I3, I9I9. L, ('46.

atented June 15, 1920,

2 SHEE IS-SHLEI I.

figg 7:

H. D. PRATT.

LOADING APPARATUS. APPLICATION FILED JUNE 13. 1919.

,343,746. Patented June 15, 1920.

2 SHtE'IS-SitEl 2.

Afion'irre sTA'rfrs PATENT OFFICE..

no wnnr.v n. ramer, 'or PHILADELPHIA, PENNSYLVANIA, AssIeNoB. 'ro LINK-BELT COMIANY, 0F CHICAGO, ILLINOIS, A COBPO-RATION OF ILLINOIS.

` :mamme` APPARATUS.

To all whom it may concern.'

Be it known that I, HOWELL l). PRATT,

a citiien of the United. States, residing in Philadelphia, Pennsylvania, have invented certain" Improvements in Loading Appa-I' ratus, of which tion.

My invention relates to loadingapparatus and especially apparatus for loading cars, boats, etc. l

One object the following is a specificaof my invention' is to provide va'simple and effective means for removing material from piles and discharging it 'into an elevator of a loading apparatus.

A further object of the linvention is to provide means for moving the anchor of the material-removing apparatus so that vas the `pile device will progressively attack the pile and push or drag the material of thepile to` ward the loading apparatus.

A still further object of the invention to mount the operating means of theremoving apparatus on the frame .of the loader so as to insure the proper feeding of the loading apparatus with material.

In the accompanying drawings: Figure V1 is a diagrammatic plan view showing the loaderand the mechanism for' removing material from apile and'carrying" it to t'he loader;

. loader;

' anism for Fig.` 2 is an enlarged side view of the are mounted two drums 6 and '7, in the present instance, which :are arranged to be coupled to the shaft ,layitlhe clutch 8. 9 is.

a sheave Vl() carried by an anchor 11.v

a rope. One end of' the rope is attached to one the other drum. This rope passes arousnd cured to this rope a scraper 12vwhicli is made as .shawn e, and is arranged Speccation of Letters Patent.

of material diminishes the anchor can be shiftedA in order that the removing4 a side view 4illustrating the mech.l

drum `.and the other isattached to Patented Julie 15, i920.

- -Appl'iee'gien mea Jane 13, 1919. serial No. 303,855.

to travel over the surface of the material and drag acertain quantity of the material to the delivery point ofthe `loader.

The Ianchor 11 is secured to the rope 13, i i

which passes around guide sheaves 14 at Xed points so that the anchor rope surrounds the pile of; material to be removed, as ,shown in F ig. 1 rope 13 are attached to a drum 14a of a windlass '15, whichcan be turned by a handle 16 so that on turning' the windlass in one. direction the anchor will be shifted r'Phe two ends othe in one direction. `and when it is turned .the oppositedirection the movementof the anchor will be reversed. Consequently, if

the scoop and' its load belocatedat one side of a. pile a' of material, as the pile is lowered vbytlneaction of the scraper the anchor rope 13 can be moved so as to shift the anchor 11 ,toward the pile in order that the scraper may make an advanced cut into the pile. This'can he carried out' until'the entire pile` is removed. On the other hand, if the anchor be placed so that the scraper and itsload-will travel overthe center of the pile, then the anchor canrema'in in this position Vuntil the central portion of vthe pile is removed and the sides of the two sections of the pile will flow into the path 'of the scraper. Then the anchor can be left,v4 to remove the entire pile.

The detailconstruction of the apparatus is clearly shown in Figs. 2, 3 and 4. The frame, 4 of the loading apparatus is supported on a platform 17 and the axle 18,

on which the wheels 3 are mounted, isselcured to this platform, and ,the axle 19, .on

' which are the two trailer wheels, is p ivotally mountedy on the frame so that when it is. wished to shift the apparatusv it can be readily accomplished: The apparatus is anchored in any suitable mannerY in a .fixed position.

The conveyer 2 consists of an endless chain `21 having buckets thereon, which ass around .a head wheel and a foot wheel 23. Thisl conveyer is mounted on a frame 24 pivoted Vat 25 atl the 'ipper'end to themain frame 4, while thelow'er end'is adjustable. vIn the present instance, Iv have shown a drum 26 on a shaft, 27 adapted to bearings on the `platform 1 7, anda. chain 28 attached to the inner end of a beam 29 is secured to the drum. A shaft 30 isgeared shifted, first to the right and then to the yto' the drum-shaftf? avvorm gear? ving .3l and has a handlel 32 by which itis turned, so-that on'turning this Vhandle the lowerend'of the conveyer can befprojected, or retracted, as' desired.'

The detail ofV the v'clutch vmechanism is las follws :-The frameA 4 is .extended as at -and on this extension are the bearings 34 fer` vvhichcan be moved intofrictional contact shifting rod`39`havir'1g handles Withineasy the shifting bar 3 9 in one direction-the clutch will be in engagement with one.:tlruvin 1. and on shifting it in the opposite directionthe clutch -Will be in engagement with the 'Y p path-of the buckets. In vthe presenti-.ji

47 carried by the upper end of the frame 4. u' This chute may have .an extension`,'.iff.de sired, dependingupon the location v or` tlne. elevator in respect to' the" carrier .be

aaa-S' .tte Staan? V around Which passes the"` driving 'chain 50 'for' driving the elevatorandf also around" shaft 5. The-detail constructionof the ap reach of the operator at each side of the machine.A This shifting rod isattachedtQa shifter 40 pivoted .at 41 to across beam attached to the extension 33, and is in engage# ment With the clutch 8 sov that' on movin other drum. By thisl means, the movement ofthe rope 9 `is reversed. In the present Y instance, the upper rope passesl around a; sheave 43 on a post 44 and the lower ropeff.

passes around 'a sheave 45 on anfextension 46. Carried by the frame y4 is atrough-52 Which-catches any .mat'erial that falls from theelevator and'returns' itto-a point lin* th stance, the buckets .discharge into a chute loaded.' y

. 48 is a motor which which passesthe chain `lijuiior driving the y `p aratus maybe modified `vvitl'iout departing.

l from the essential features ofthe invention. 7 50 K i f jacent to the railwayI track on which the cars-"are run to be 'loaded and there is a con-v If, for instance,ut he loader .be located adi vsiderahle pile of material beyond the .-track,

u4 then the loader is placed in position so as'to discharge directly into a car and the- ,anchorl rope 13 extends around thepile and the sheaves 14 anchored 'at different distances apart. The anchor 11 carrying the sheave 10 is attached to the anchor rope 13 at"a given point andv the Windlass 15 is located so as to .be clear of the pile and of' the loading apparatus. The scraper and its ropes are placed in position so asto remove material from the pile and 4dischar 'e it at the footA of theconveyer of the loa lng ap-` maar@ params. The operatoractuates the shifting bar 39 so that the clutch will first en- N gage one drum in order to movethe'scraper toward the loader and then throws it into engagement vviththe other drum so as to move the s craper'aivaj-*ifom the loader so thatA the material is fed to the loader intermittently by the reciprocating scraper. .Di'erent forms of Scrapers may be`used, `loutT preferto use the scraper illustrated in the drawings, and Whichv is clearly describedand claimed/)in the patent granted toV me vof,

on'the'14thday of May, 1918, No. 1,266,153. -1

1 Whenthe-,scraper has removed material fromfthenpilefto such an extent as to reduce its capacity,";then .theanchor 11 is shifted :by `operatingthe -vvindlass 15 so that the scrapervvilltraveljin another path'and Will remove additionalmaterial from the pile y and the 'movement of the anchor will be continueduntil the entire pile has been removed;

Tn 7, I have illustrated a construei .tlon Vin which a series of Scrapers is-shown attachedto a single rope. 4The lrope isre- '.Cprocated andthe amount of reciprocation Will depend upon the distance apart of the scoops, so that one scoop will discharge material' at'such' a; point that it canv be taken -"up by anothernscoop 'and finally delivered at thedischarge point.

lhe` apparatus that Iemploy is comparaelysimple, and is Within the cost of the mall" shipper. At the same time, it Will do machine. Thev apparatus is `exible, as the nchor rope can be lengthened or shortened, 'ccordingfto' the size ofthe piles.

ABycarrying' the operating drums for the scraperl on the frame of the loading appa-` -ratus,"a single motor can operate the elevator ofthe loadmg apparatus, as Well as the ',-nech'anism ofthe scraper.

Tn Fig. 3, I have shown a drag 5.3 having vteeth Which engagejthe material and loosen hev'vorliof a more expensive and intricatev it so that it can vloe readily scraped.V This drag is attached to therope `9 at the rear end of the scoop ini the present instance.

'Tclaim:

1. The combination ina .loading apparatus, of a frame, said frame having horizon-lv tal bars fixed to it and forming an extended elevated supporting structure; an'elevat'or carried by the frame back of'said extension;

ashaft en the extended portion of the frame; two drums loose on the shaft; al

clutch arranged to turn With the shaft; A means for shifting the clutch so as to eny rgage either of said drums; a rope connectedY to said drums; a'sheave around which the rope passes, an anchor for the sheave lo cated distant from the drums; and a scraper vcarried by the rope so that on alternately reversingv the movement of said rope the scraper will remove material from a pile miam ' elevator mounted on the frame back of said structure; means for driving the elevator;

a shaft mounted in bearings on the eXtension; means for driving the shaft; two drums loose on the shaft; an intermittent clutch arranged' to engage either of the drums; a shifter Jfor theclutch; a rope pass ing around each drum and-passing through a sheave at a point distant from the shaft;

an anchor for the sheave; a scraper secured tothe rope and arranged to scrape material toward the loader; and a unitary Windingdrum to which-both ends of the rope are connected for shifting the position of said anchor. v

3. The combination in a loading apparatus, of a bucket elevator for lifting material to a discharge point; a frame in which the elevator is mounted, said frame having an elevatedl horizontal extension at one end located in advance of the elevator and a substantial distance above the receiving end thereof; a scraper; and means on said elevated extension for operating the scraper so thatit can be located to remove material from a pile and carry it toward the elevator in order that said elevator may remain in a fixed position.

In Witnesswhereof I affix my signature.

" .HOWELL D. PRATT. 

